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Chen X, Ding L, Wang Y, Gao Z, Li J, Liu X, Wang L, Zhu Y, Fan C, Jia S, Yao G. Welded Gold Nanoparticle Assemblies Defined Plasmonic Coupling. NANO LETTERS 2024. [PMID: 38984788 DOI: 10.1021/acs.nanolett.4c01887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Nanoparticle assemblies with interparticle ohmic contacts are crucial for nanodevice fabrication. Despite tremendous progress in DNA-programmable nanoparticle assemblies, seamlessly welding discrete components into welded continuous three-dimensional (3D) configurations remains challenging. Here, we introduce a single-stranded DNA-encoded strategy to customize welded metal nanostructures with tunable morphologies and plasmonic properties. We demonstrate the precise welding of gold nanoparticle assemblies into continuous metal nanostructures with interparticle ohmic contacts through chemical welding in solution. We find that the welded gold nanoparticle assemblies show a consistent morphology with welded efficiency over 90%, such as the rod-like, triangular, and tetrahedral metal nanostructures. Next, we show the versatility of this strategy by welding gold nanoparticle assemblies of varied sizes and shapes. Furthermore, the experiment and simulation show that the welded gold nanoparticle assemblies exhibit defined plasmonic coupling. This single-stranded DNA encoded welding system may provide a new route for accurately building functional plasmonic nanomaterials and devices.
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Affiliation(s)
- Xiaoliang Chen
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhang Jiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Longjiang Ding
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhang Jiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yue Wang
- Division of Physical Biology, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 201800, China
| | - Zhaoshuai Gao
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhang Jiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiang Li
- Institute of Materiobiology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Xiaoguo Liu
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhang Jiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lihua Wang
- Institute of Materiobiology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Ying Zhu
- Institute of Materiobiology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhang Jiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Sisi Jia
- Zhangjiang Laboratory, Shanghai 201210, China
| | - Guangbao Yao
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhang Jiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
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2
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Ding C, Min J, Tan Y, Zheng L, Ma R, Zhao R, Zhao H, Ding Q, Chen H, Huo D. Combating Atherosclerosis with Chirality/Phase Dual-Engineered Nanozyme Featuring Microenvironment-Programmed Senolytic and Senomorphic Actions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401361. [PMID: 38721975 DOI: 10.1002/adma.202401361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/22/2024] [Indexed: 05/18/2024]
Abstract
Senescence plays a critical role in the development and progression of various diseases. This study introduces an amorphous, high-entropy alloy (HEA)-based nanozyme designed to combat senescence. By adjusting the nanozyme's composition and surface properties, this work analyzes its catalytic performance under both normal and aging conditions, confirming that peroxide and superoxide dismutase (SOD) activity are crucial for its anti-aging therapeutic function. Subsequently, the chiral-dependent therapeutic effect is validated and the senolytic performance of D-handed PtPd2CuFe across several aging models is confirmed. Through multi-Omics analyses, this work explores the mechanism underlying the senolytic action exerted by nanozyme in depth. It is confirm that exposure to senescent conditions leads to the enrichment of copper and iron atoms in their lower oxidation states, disrupting the iron-thiol cluster in mitochondria and lipoic acid transferase, as well as oxidizing unsaturated fatty acids, triggering a cascade of cuproptosis and ferroptosis. Additionally, the concentration-dependent anti-aging effects of nanozyme is validated. Even an ultralow dose, the therapeutic can still act as a senomorphic, reducing the effects of senescence. Given its broad-spectrum action and concentration-adjustable anti-aging potential, this work confirms the remarkable therapeutic capability of D-handed PtPd2CuFe in managing atherosclerosis, a disease involving various types of senescent cells.
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Affiliation(s)
- Chengjin Ding
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Jiao Min
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Yongkang Tan
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Liuting Zheng
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Ruxuan Ma
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Ruyi Zhao
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Huiyue Zhao
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Qingqing Ding
- Department of Geriatric Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Hongshan Chen
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Da Huo
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
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Shao T, Xu J, Zhong H, Hu Y, Chen J. A stable and flexible Au@Ag NPs/PVA SERS platform for thiram residue detection on rough surface. Talanta 2024; 274:126008. [PMID: 38599117 DOI: 10.1016/j.talanta.2024.126008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/27/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024]
Abstract
Flexible and transparent surface-enhanced Raman scattering (SERS) substrates have gained great attention in analysis field as they offer a fast, non-destructive, and highly sensitive platform for in-situ detection. In this work, we present a facile one-pot strategy for synthesizing gold-cored silver shell nanoparticles (Au@Ag NPs) in the polyvinyl alcohol (PVA) colloid. With no other reducing agents, PVA can serve as both reducing and stabilizing agents for forming Au@Ag NPs. Besides, PVA acts as a scaffold to maintain SERS "hot-spots" by preventing nanoparticle aggregation. By using this flexible Au@Ag NPs/PVA colloid, the analytes can be extracted from rough surfaces for SERS measurements with excellent sensitivity, repeatability and stability. The SERS activity of the Au@Ag NPs/PVA remained at 89.8% even after 120 days of storage at room temperature in sealed air atmosphere. The selective detection of thiram residues on the surface of fruits and vegetables was successfully achieved. The limits of detection for thiram residues on apple and tomato surfaces were measured to be 0.58 and 0.56 ng cm-2, respectively, with recovery rate ranging from 91% to 107%. This work demonstrates the immense application potential of SERS colloid platform in the fields of food safety and environmental analysis.
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Affiliation(s)
- Tao Shao
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, PR China
| | - Jinsong Xu
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, PR China
| | - Hang Zhong
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, PR China
| | - Yi Hu
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, PR China
| | - Jun Chen
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, PR China.
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Liang J, Cao G, Zeng M, Fu L. Controllable synthesis of high-entropy alloys. Chem Soc Rev 2024; 53:6021-6041. [PMID: 38738520 DOI: 10.1039/d4cs00034j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
High-entropy alloys (HEAs) involving more than four elements, as emerging alloys, have brought about a paradigm shift in material design. The unprecedented compositional diversities and structural complexities of HEAs endow multidimensional exploration space and great potential for practical benefits, as well as a formidable challenge for synthesis. To further optimize performance and promote advanced applications, it is essential to synthesize HEAs with desired characteristics to satisfy the requirements in the application scenarios. The properties of HEAs are highly related to their chemical compositions, microstructure, and morphology. In this review, a comprehensive overview of the controllable synthesis of HEAs is provided, ranging from composition design to morphology control, structure construction, and surface/interface engineering. The fundamental parameters and advanced characterization related to HEAs are introduced. We also propose several critical directions for future development. This review can provide insight and an in-depth understanding of HEAs, accelerating the synthesis of the desired HEAs.
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Affiliation(s)
- Jingjing Liang
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Guanghui Cao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Mengqi Zeng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Lei Fu
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
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Rhakho N, Saxena M, Pradhan NR, H Jadhav A, Altaee A, Samal AK. Transformative Dynamics: Self-Assembly of Iron Oxide Hydroxide Nanorods into Iron Oxide Microcubes for Enhanced Perfluoroalkyl Substance Remediation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10184-10194. [PMID: 38699923 DOI: 10.1021/acs.langmuir.4c00472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
We report the controlled synthesis of iron oxide microcubes (IOMCs) through the self-assembly arrays of ferric oxide hydroxide nanorods (NRs). The formation of IOMCs involves a complex interplay of nucleation, self-assembly, and growth mechanisms influenced by time, thermal treatment, and surfactant dynamics. The self-assembly of vertically aligned NRs into IOMCs is controlled by dynamic magnetism properties and capping agents like cetyltrimethylammonium bromide (CTAB), whose concentration and temperature modulation dictate growth kinetics and structural uniformity. These controlled structural growths were obtained via a hydrothermal process at 120 °C at various intervals of 8, 16, 24, and 32 h in the presence of CTAB as the capping agent. In this hydrothermal method, the formation of vertically oriented NR arrays was observed without the presence of ligands, binders, harsh drying techniques, and solvent evaporation. The formation of the self-assembly of NRs to IOMCs is obtained with an increase in saturated magnetization to attain the most stable state. The synthesized IOMCs have a uniform size, quasi-shape, and excellent dispersion. Due to its excellent magnetic and catalytic properties, IOMCs were employed to remove the various emerging pollutants known as per- and polyfluorinated substances (PFAS). Various microscopic and spectroscopic techniques were employed for the characterization and interaction studies of IOMCs with various PFAS. The interaction between IOMCs and perfluoroalkyl substances (PFAS) was investigated, revealing strong adsorption tendencies facilitated by electrostatic interactions, as evidenced by UV-vis and FT-IR spectroscopic studies. Furthermore, the higher magnetic and positive surface charge of IOMCs is responsible for an effective remediation eliminating any secondary pollution with ease of recovery after the sorption interaction studies, thereby making it practically worthwhile.
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Affiliation(s)
- Novuhulu Rhakho
- Centre for Nano and Material Science, JAIN (Deemed-to-be University), Jain Global Campus, Bangalore 562112, India
| | - Manav Saxena
- Centre for Nano and Material Science, JAIN (Deemed-to-be University), Jain Global Campus, Bangalore 562112, India
| | - Nihar R Pradhan
- Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, 1400 John R. Lynch Street, Jackson, Mississippi 39217, United States
| | - Arvind H Jadhav
- Centre for Nano and Material Science, JAIN (Deemed-to-be University), Jain Global Campus, Bangalore 562112, India
| | - Ali Altaee
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, Sydney, NSW 2007, Australia
| | - Akshaya K Samal
- Centre for Nano and Material Science, JAIN (Deemed-to-be University), Jain Global Campus, Bangalore 562112, India
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6
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Gong S, Lu Y, Yin J, Levin A, Cheng W. Materials-Driven Soft Wearable Bioelectronics for Connected Healthcare. Chem Rev 2024; 124:455-553. [PMID: 38174868 DOI: 10.1021/acs.chemrev.3c00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
In the era of Internet-of-things, many things can stay connected; however, biological systems, including those necessary for human health, remain unable to stay connected to the global Internet due to the lack of soft conformal biosensors. The fundamental challenge lies in the fact that electronics and biology are distinct and incompatible, as they are based on different materials via different functioning principles. In particular, the human body is soft and curvilinear, yet electronics are typically rigid and planar. Recent advances in materials and materials design have generated tremendous opportunities to design soft wearable bioelectronics, which may bridge the gap, enabling the ultimate dream of connected healthcare for anyone, anytime, and anywhere. We begin with a review of the historical development of healthcare, indicating the significant trend of connected healthcare. This is followed by the focal point of discussion about new materials and materials design, particularly low-dimensional nanomaterials. We summarize material types and their attributes for designing soft bioelectronic sensors; we also cover their synthesis and fabrication methods, including top-down, bottom-up, and their combined approaches. Next, we discuss the wearable energy challenges and progress made to date. In addition to front-end wearable devices, we also describe back-end machine learning algorithms, artificial intelligence, telecommunication, and software. Afterward, we describe the integration of soft wearable bioelectronic systems which have been applied in various testbeds in real-world settings, including laboratories that are preclinical and clinical environments. Finally, we narrate the remaining challenges and opportunities in conjunction with our perspectives.
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Affiliation(s)
- Shu Gong
- Department of Chemical & Biological Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Yan Lu
- Department of Chemical & Biological Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Jialiang Yin
- Department of Chemical & Biological Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Arie Levin
- Department of Chemical & Biological Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Wenlong Cheng
- Department of Chemical & Biological Engineering, Monash University, Clayton, Victoria 3800, Australia
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7
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Zhu L, Xu D, Yi C. Ultrathin RhCo alloy nanowires with defect-rich active sites for alkaline hydrogen evolution electrocatalysis. Chem Commun (Camb) 2023; 59:13978-13981. [PMID: 37937406 DOI: 10.1039/d3cc04195f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
One-dimensional RhCo alloy nanowires (NWs) with an ultrathin thickness (2.6 nm) and abundant defect sites were prepared in an aqueous solution by a nanoconfined attachment growth route within assembled columnar micelles. Thanks to dual synergies between advantageous anisotropic ultrathin structures and alloy compositions, they endowed one-dimensional RhCo NWs with superior activity and high stability for alkaline hydrogen evolution electrocatalysis.
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Affiliation(s)
- Luyu Zhu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Dongdong Xu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Chenglin Yi
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
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8
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He MQ, Ai Y, Hu W, Guan L, Ding M, Liang Q. Recent Advances of Seed-Mediated Growth of Metal Nanoparticles: from Growth to Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211915. [PMID: 36920232 DOI: 10.1002/adma.202211915] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/26/2023] [Indexed: 06/18/2023]
Abstract
Unprecedented advances in metal nanoparticle synthesis have paved the way for broad applications in sensing, imaging, catalysis, diagnosis, and therapy by tuning the optical properties, enhancing catalytic performance, and improving chemical and biological properties of metal nanoparticles. The central guiding concept for regulating the size and morphology of metal nanoparticles is identified as the precise manipulation of nucleation and subsequent growth, often known as seed-mediated growth methods. However, since the growth process is sensitive not only to the metal seeds but also to capping agents, metal precursors, growth solution, growth/incubation time, reductants, and other influencing factors, the precise control of metal nanoparticle morphology is multifactorial. Further, multiple reaction parameters are entangled with each other, so it is necessary to clarify the mechanism by which each factor precisely regulates the morphology of metal nanoparticles. In this review, to exploit the generality and extendibility of metal nanoparticle synthesis, the mechanisms of growth influencing factors in seed-mediated growth methods are systematically summarized. Second, a variety of critical properties and applications enabled by grown metal nanoparticles are focused upon. Finally, the current progress and offer insights on the challenges, opportunities, and future directions for the growth and applications of grown metal nanoparticles are reviewed.
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Affiliation(s)
- Meng-Qi He
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Tsinghua University-Peking University Joint Centre for Life Sciences, Tsinghua University, Beijing, 100084, P. R. China
| | - Yongjian Ai
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Tsinghua University-Peking University Joint Centre for Life Sciences, Tsinghua University, Beijing, 100084, P. R. China
| | - Wanting Hu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Tsinghua University-Peking University Joint Centre for Life Sciences, Tsinghua University, Beijing, 100084, P. R. China
| | - Liandi Guan
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Tsinghua University-Peking University Joint Centre for Life Sciences, Tsinghua University, Beijing, 100084, P. R. China
| | - Mingyu Ding
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Tsinghua University-Peking University Joint Centre for Life Sciences, Tsinghua University, Beijing, 100084, P. R. China
| | - Qionglin Liang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Tsinghua University-Peking University Joint Centre for Life Sciences, Tsinghua University, Beijing, 100084, P. R. China
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9
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Forrer N, Nigro A, Gadea G, Zardo I. Influence of Different Carrier Gases, Temperature, and Partial Pressure on Growth Dynamics of Ge and Si Nanowires. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2879. [PMID: 37947724 PMCID: PMC10650493 DOI: 10.3390/nano13212879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/23/2023] [Accepted: 10/29/2023] [Indexed: 11/12/2023]
Abstract
The broad and fascinating properties of nanowires and their synthesis have attracted great attention as building blocks for functional devices at the nanoscale. Silicon and germanium are highly interesting materials due to their compatibility with standard CMOS technology. Their combination provides optimal templates for quantum applications, for which nanowires need to be of high quality, with carefully designed dimensions, crystal phase, and orientation. In this work, we present a detailed study on the growth kinetics of silicon (length 0.1-1 μm, diameter 10-60 nm) and germanium (length 0.06-1 μm, diameter 10-500 nm) nanowires grown by chemical vapor deposition applying the vapour-liquid-solid growth method catalysed by gold. The effects of temperature, partial pressure of the precursor gas, and different carrier gases are analysed via scanning electron microscopy. Argon as carrier gas enhances the growth rate at higher temperatures (120 nm/min for Ar and 48 nm/min H2), while hydrogen enhances it at lower temperatures (35 nm/min for H2 and 22 nm/min for Ar) due to lower heat capacity. Both materials exhibit two growth regimes as a function of the temperature. The tapering rate is about ten times lower for silicon nanowires than for germanium ones. Finally, we identify the optimal conditions for nucleation in the nanowire growth process.
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Affiliation(s)
- Nicolas Forrer
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland; (N.F.); (A.N.); (G.G.)
| | - Arianna Nigro
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland; (N.F.); (A.N.); (G.G.)
| | - Gerard Gadea
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland; (N.F.); (A.N.); (G.G.)
- Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
| | - Ilaria Zardo
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland; (N.F.); (A.N.); (G.G.)
- Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
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10
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Xie Y, Yang Z. Morphological and Coordination Modulations in Iridium Electrocatalyst for Robust and Stable Acidic OER Catalysis. CHEM REC 2023; 23:e202300129. [PMID: 37229769 DOI: 10.1002/tcr.202300129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/12/2023] [Indexed: 05/27/2023]
Abstract
Proton exchange membrane water splitting (PEMWS) technology has high-level current density, high operating pressure, small electrolyzer-size, integrity, flexibility, and has good adaptability to the volatility of wind power and photovoltaics, but the development of both active and high stability of the anode electrocatalyst in acidic environment is still a huge challenge, which seriously hinders the promotion and application of PEMWS. In recent years, researchers have made tremendous attempts in the development of high-quality active anode electrocatalyst, and we summarize some of the research progress made by our group in the design and synthesis of PEMWS anode electrocatalysts with different nanostructures, and makes full use of electrocatalytic activity points to increase the inherent activity of Iridium (Ir) sites, and provides optimization strategies for the long-term non-decay of catalysts under high anode potential in acidic environments. At this stage, these research advances are expected to facilitate the research and technological progress of PEMWS, and providing some research ideas and references for future research on efficient and inexpensive PEMWS anode electrocatalysts.
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Affiliation(s)
- Yuhua Xie
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China, University of Geosciences Wuhan, 388 Lumo RD, Wuhan, 430074, P. R. China
| | - Zehui Yang
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China, University of Geosciences Wuhan, 388 Lumo RD, Wuhan, 430074, P. R. China
- Zhejiang Institute, China University of Geosciences, Hangzhou, 311305, P. R. China
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11
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Chen G, Li R, Huang L. Advances in photochemical deposition for controllable synthesis of heterogeneous catalysts. NANOSCALE 2023; 15:13909-13931. [PMID: 37581402 DOI: 10.1039/d3nr02475j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Photochemical deposition has been attracting increasing attention for preparing nano-catalysts due to its mild reaction conditions, simplicity, green and safe characteristics, and potential for various applications in photocatalysis, thermal catalysis, and electrocatalysis. In this review, we provide an overview of recent advances in photochemical deposition methods for fabricating heterogeneous catalysts, and summarize the factors that influence the nucleation and growth of metal nanoparticles during the photochemical process. Specifically, we focus on the various factors including surface defects, crystal facets, surface properties and the surface plasmon effect on the size, morphology and distribution control of metal and metal oxide nanoparticles on semiconductors. The control of the photogenerated charges and the triggered photochemical reactions have been proved to be significant in the photochemical deposition process. Besides, the applications of the obtained catalytic materials in thermal catalysis and electrocatalysis is highlighted, considering that many reviews have covered photocatalysis applications. We first introduce the principle of photodeposition, nucleation and growth theory, and factors affecting photodeposition. Then, we introduce photodeposition methods that can achieve "controlled" photodeposition from a strategic perspective. Finally, we summarize the fruitful results of controlled photodeposition and provide future prospects for the development of controlled photodeposition technologies and methods, as well as the deepening and expansion of applications.
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Affiliation(s)
- Guoli Chen
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China.
| | - Rengui Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.
| | - Lei Huang
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China.
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12
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Tanjil MRE, Gupta T, Gole MT, Suero KP, Yin Z, McCleeary DJ, Douglas ORT, Kincanon MM, Rudawski NG, Anderson AB, Murphy CJ, Zhao H, Wang MC. Nanoscale goldbeating: Solid-state transformation of 0D and 1D gold nanoparticles to anisotropic 2D morphologies. PNAS NEXUS 2023; 2:pgad267. [PMID: 37621403 PMCID: PMC10446819 DOI: 10.1093/pnasnexus/pgad267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/24/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023]
Abstract
Goldbeating is the ancient craft of thinning bulk gold (Au) into gossamer leaves. Pioneered by ancient Egyptian craftsmen, modern mechanized iterations of this technique can fabricate sheets as thin as ∼100 nm. We take inspiration from this millennia-old craft and adapt it to the nanoscale regime, using colloidally synthesized 0D/1D Au nanoparticles (AuNPs) as highly ductile and malleable nanoscopic Au ingots and subjecting them to solid-state, uniaxial compression. The applied stress induces anisotropic morphological transformation of AuNPs into 2D leaf form and elucidates insights into metal nanocrystal deformation at the extreme length scales. The induced 2D morphology is found to be dependent on the precursor 0D/1D NP morphology, size (0D nanosphere diameter and 1D nanorod diameter and length), and their on-substrate arrangement (e.g., interparticle separation and packing order) prior to compression. Overall, this versatile and generalizable solid-state compression technique enables new pathways to synthesize and investigate the anisotropic morphological transformation of arbitrary NPs and their resultant emergent phenomena.
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Affiliation(s)
- Md Rubayat-E Tanjil
- Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USA
| | - Tanuj Gupta
- Department of Mechanical Engineering, Clemson University, Clemson, SC 29634-0921, USA
| | - Matthew T Gole
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Keegan P Suero
- Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USA
| | - Zhewen Yin
- Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USA
| | - Donald J McCleeary
- Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USA
| | - Ossie R T Douglas
- Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USA
| | - Maegen M Kincanon
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Nicholas G Rudawski
- Herbert Wertheim College of Engineering Research Service Centers, University of Florida, Gainesville, FL 32611, USA
| | - Alissa B Anderson
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Huijuan Zhao
- Department of Mechanical Engineering, Clemson University, Clemson, SC 29634-0921, USA
| | - Michael Cai Wang
- Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USA
- Department of Medical Engineering, University of South Florida, Tampa, FL 33620, USA
- Department of Chemical, Biological, and Materials Engineering, University of South Florida, Tampa, FL 33620, USA
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13
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Zhu E, Liu Y, Huang J, Zhang A, Peng B, Liu Z, Liu H, Yu J, Li YR, Yang L, Duan X, Huang Y. Bubble-Mediated Large-Scale Hierarchical Assembly of Ultrathin Pt Nanowire Network Monolayer at Gas/Liquid Interfaces. ACS NANO 2023. [PMID: 37410702 PMCID: PMC10373521 DOI: 10.1021/acsnano.3c04771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Extensive macroscale two-dimensional (2-D) platinum (Pt) nanowire network (NWN) sheets are created through a hierarchical self-assembly process with the aid of biomolecular ligands. The Pt NWN sheet is assembled from the attachment growth of 1.9 nm-sized 0-D nanocrystals into 1-D nanowires featuring a high density of grain boundaries, which then interconnect to form monolayer network structures extending into centimeter-scale size. Further investigation into the formation mechanism reveals that the initial emergence of NWN sheets occurs at the gas/liquid interfaces of the bubbles produced by sodium borohydride (NaBH4) during the synthesis process. Upon the rupture of these bubbles, an exocytosis-like process releases the Pt NWN sheets at the gas/liquid surface, which subsequently merge into a continuous monolayer Pt NWN sheet. The Pt NWN sheets exhibit outstanding oxygen reduction reaction (ORR) activities, with specific and mass activities 12.0 times and 21.2 times greater, respectively, than those of current state-of-the-art commercial Pt/C electrocatalysts.
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14
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Chao HY, Venkatraman K, Moniri S, Jiang Y, Tang X, Dai S, Gao W, Miao J, Chi M. In Situ and Emerging Transmission Electron Microscopy for Catalysis Research. Chem Rev 2023. [PMID: 37327473 DOI: 10.1021/acs.chemrev.2c00880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Catalysts are the primary facilitator in many dynamic processes. Therefore, a thorough understanding of these processes has vast implications for a myriad of energy systems. The scanning/transmission electron microscope (S/TEM) is a powerful tool not only for atomic-scale characterization but also in situ catalytic experimentation. Techniques such as liquid and gas phase electron microscopy allow the observation of catalysts in an environment conducive to catalytic reactions. Correlated algorithms can greatly improve microscopy data processing and expand multidimensional data handling. Furthermore, new techniques including 4D-STEM, atomic electron tomography, cryogenic electron microscopy, and monochromated electron energy loss spectroscopy (EELS) push the boundaries of our comprehension of catalyst behavior. In this review, we discuss the existing and emergent techniques for observing catalysts using S/TEM. Challenges and opportunities highlighted aim to inspire and accelerate the use of electron microscopy to further investigate the complex interplay of catalytic systems.
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Affiliation(s)
- Hsin-Yun Chao
- Center for Nanophase Materials Sciences, One Bethel Valley Road, Building 4515, Oak Ridge, Tennessee 37831-6064, United States
| | - Kartik Venkatraman
- Center for Nanophase Materials Sciences, One Bethel Valley Road, Building 4515, Oak Ridge, Tennessee 37831-6064, United States
| | - Saman Moniri
- Department of Physics and Astronomy and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Yongjun Jiang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Xuan Tang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Wenpei Gao
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Jianwei Miao
- Department of Physics and Astronomy and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Miaofang Chi
- Center for Nanophase Materials Sciences, One Bethel Valley Road, Building 4515, Oak Ridge, Tennessee 37831-6064, United States
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15
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Braun TM, Osborn WA, Moffat TP. Filament Growth and Related Instabilities during Adsorbate Suppressed Electrodeposition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4924-4935. [PMID: 37000573 DOI: 10.1021/acs.langmuir.2c03239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Anisotropic growth of a single filament on a microelectrode is demonstrated by galvanostatic electrodeposition in a bistable passive-active critical system. Specifically, a Cu filament is formed by disruption of a passivating polyether-halide bilayer triggered by metal deposition with positive feedback guiding highly localized deposition. For macroscale electrodes, complex passive-active Turing patterns develop, while for micrometer-sized electrodes, bifurcation is frustrated and a single active zone develops, which is reinforced by hemispherical transport. As deposition proceeds, hemispherical symmetry is broken with lateral propagation of a single filament while an increasing fraction of the applied current supports expansion of the passive sidewall area that eventually leads to termination of anisotropic growth. Different polyether suppressors alter the dynamic range between passive and active growth that determines the shape and extent of filament formation. The impact of electrode area, geometry, and applied current on morphological evolution was also briefly examined. The results highlight the utility of appropriately scaled microelectrodes in the study of growth instabilities during breakdown of additive suppressed layers in critical electrodeposition systems.
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Affiliation(s)
- Trevor M Braun
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - William A Osborn
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Thomas P Moffat
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
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16
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Fu CP, Li KJ, He JY, Yu WH, Zhou CH. Controlled fabrication of Ag@clay nanomaterials for ultrasensitive and rapid surface-enhanced Raman spectroscopic detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1001-1015. [PMID: 36541705 DOI: 10.1039/d2ay01262f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The nanostructure of Ag nanoparticles (NPs) plays a critical role in their surface-enhanced Raman scattering (SERS) activity. Despite many efforts to tune the nanostructure of Ag NPs, it remains a great challenge as Ag NPs tend to agglomerate and their nanostructure is difficult to control. Herein, newly-discovered clay-surfactant-Ag+ materials and interfacial processes were developed and used to prepare uniform spherical Ag@synthetic hectorite (Ag@Hct) nanomaterials for ultrasensitive SERS assay. Sodium dodecyl sulfate (SDS), an anionic surfactant, acted as a bridge to conjugate the positively charged edge of Hct NPs and Ag+via electrostatic interaction to form the bridging nanostructure of Hct-SDS-Ag+, which promoted the uniform dispersion of Hct NPs. Following this, Ag+ was reduced to Ag0 by the reductant, and Ag0 grew on the surface of disc-like Hct NPs to form spherical Ag@Hct nanomaterials with an average particle size of ∼24 nm. The prepared Ag@Hct nanomaterials showed an ultrasensitive SERS response to methylene blue (MB) with a detection limit of 10-12 M. The detection limit of MB in sewage was 10-11 M. The prepared Ag@Hct nanomaterials also exhibited great SERS enhancement for malachite green and crystal violet. This work provides a novel and simple approach to prepare Ag@Hct nanomaterials with uniform spheres and adjustable particle size, allowing more sensitive and reproducible detection of MB.
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Affiliation(s)
- Chao Peng Fu
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China.
| | - Ke Jin Li
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China.
| | - Jia Yong He
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China.
| | - Wei Hua Yu
- Zhijiang College, Zhejiang University of Technology, Shaoxing, 312030, China
| | - Chun Hui Zhou
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China.
- Qing Yang Institute for Industrial Minerals, Youhua, Qingyang, Chizhou, 242804, China
- Engineering Research Center of Non-metallic Minerals of Zhejiang Province, Zhejiang Institute of Geology and Mineral Resources, Hangzhou, 310007, China
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17
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Li S, Jin H, Wang Y. Recent progress on the synthesis of metal alloy nanowires as electrocatalysts. NANOSCALE 2023; 15:2488-2515. [PMID: 36722933 DOI: 10.1039/d2nr06090f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Benefiting from both one-dimensional (1D) morphology and alloy composition, metal alloy nanowires have been exploited as advanced electrocatalysts in various electrochemical processes. In this review, the synthesis approaches for metal alloy nanowires are classified into two categories: direct syntheses and syntheses based on preformed 1D nanostructures. Ligand systems that are of critical importance to the formation of alloy nanowires are summarized and reviewed, together with the strategies imposed to achieve the co-reduction of different metals. Meanwhile, different scenarios that form alloy nanowires from pre-synthesized 1D nanostructures are compared and contrasted. In addition, the characterization and electrocatalytic applications of metal alloy nanowires are briefly discussed.
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Affiliation(s)
- Shumin Li
- Institute of Advanced Synthesis (IAS), Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P.R. China.
| | - Hui Jin
- Institute of Advanced Synthesis (IAS), Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P.R. China.
| | - Yawen Wang
- Institute of Advanced Synthesis (IAS), Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P.R. China.
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18
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Continuous, green, and room-temperature synthesis of silver nanowires in a helically-coiled millifluidic reactor. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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19
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Xu J, Zhu X, Xu L, Kan C, Shi D. Template-directed growth of Ag nanostructures: soft templates versus hard templates. NANOSCALE 2023; 15:1687-1694. [PMID: 36594633 DOI: 10.1039/d2nr05667d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Hard template-directed growth methods present a compelling route for the synthesis of Ag nanostructures with precise size control. Meanwhile, soft template methods are effective and flexible for the synthesis of Ag nanostructures with various morphologies. However, the role of the soft template is ambiguous and obviously neglected in hard template-directed growth processes due to the strong confinement effect of the hard template, limiting the diversity of Ag nanostructures that can be obtained. Herein, we design Au nanoframes with deformable head structures as a hard template while using cetyltrimethylammonium chloride as a soft template, to direct the growth of Ag atoms on Au nanobipyramid seeds. When using the Au nanoframes with a closed head, the longitudinal growth of the Ag atoms is clearly limited by the hard template, leading to the formation of thick Ag nanorods with a five-fold twinned structure. The soft template starts to influence the growth process when the head structure of the Au nanoframes becomes hollow. In particular, the confinement effect of the hard template can be completely broken by selectively strengthening the role of the soft template, promoting the production of slender Ag nanorods similar to the results obtained in the absence of the hard template. Our results indicate that the morphology of the Ag nanostructures depends on the competition between the qualitatively confined energies of the hard and soft templates during the template-directed growth process. Moreover, this confined growth mechanism is also verified by the successful construction of various Ag nanostructures. The understanding of the collaborative competition mechanism between the soft and hard templates presents a great opportunity to construct novel Ag nanostructures through a template-directed method.
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Affiliation(s)
- Juan Xu
- College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
| | - Xingzhong Zhu
- College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
- Key Laboratory of Aerospace Information Materials and Physics (NUAA), MIIT, Nanjing 211106, China
| | - Lihui Xu
- College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
| | - Caixia Kan
- College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
- Key Laboratory of Aerospace Information Materials and Physics (NUAA), MIIT, Nanjing 211106, China
| | - Daning Shi
- College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
- Key Laboratory of Aerospace Information Materials and Physics (NUAA), MIIT, Nanjing 211106, China
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20
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Liu Y, Sheng S, Wu M, Wang S, Wang Y, Yang H, Chen J, Hao X, Zhi C, Wang Y, Xie H. Controllable Synthesis of PtIrCu Ternary Alloy Ultrathin Nanowires for Enhanced Ethanol Electrooxidation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3934-3940. [PMID: 36636752 DOI: 10.1021/acsami.2c17883] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Rational design and controllable synthesis of catalysts with unique structure and composition are effective ways to promote electrocatalytic ethanol oxidation, thus contributing the direct ethanol fuel cells to gain ground. Herein, 2.5 nm-thin PtIrCu ternary alloy ultrathin nanowires (UNWs) with high-density planar defects are synthesized via oriented attachment with the assistance of H2. By adjusting the contents of Ir and Cu atoms, we find that the structure of the products changed from nanowires (NWs) to nanoparticles with the increase of Ir content. Density functional theory calculations show that when Cu atoms are replaced by Ir atoms, the vacancy formation energy of Pt atoms is increased, making the Pt atoms difficult to be activated by H2, which is not conducive to the formation of a one-dimensional structure. The optimal Pt43Ir32Cu25 UNWs achieve excellent ethanol electrooxidation reaction activity (1.05 A·mg-1Pt and 1.67 mA·cm-2), for it can significantly reduce the onset potential and improve the ability of CO anti-poisoning. The significant improvement in catalytic performance is attributed to the synergistic effect of the alloy and the NW structure with high-density planar defects.
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Affiliation(s)
- Yaming Liu
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
- Key Laboratory of Functional Textile Material and Product, Ministry of Education, Xi'an Polytechnic University, Xi'an 710048, China
| | - Shanxiang Sheng
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Meng Wu
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Sen Wang
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Yaxin Wang
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Hongyue Yang
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Jiahao Chen
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Xiangyang Hao
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Chao Zhi
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Yongzhen Wang
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
- Key Laboratory of Functional Textile Material and Product, Ministry of Education, Xi'an Polytechnic University, Xi'an 710048, China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co. Ltd, Hangzhou, Zhejiang 310003, China
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21
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Wang S, Zheng W, Wang R, Zhang L, Yang L, Wang T, Saliba JG, Chandra S, Li CZ, Lyon CJ, Hu TY. Monocrystalline Labeling Enables Stable Plasmonic Enhancement for Isolation-Free Extracellular Vesicle Analysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2204298. [PMID: 36354195 PMCID: PMC9839537 DOI: 10.1002/smll.202204298] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/14/2022] [Indexed: 05/20/2023]
Abstract
Sensitive detection of extracellular vesicles (EVs) as emerging biomarkers has shown great promises for disease diagnosis. Plasmonic metal nanostructures conjugated with molecules that bind specific biomarker targets are widely used for EVs sensing but involve tradeoffs between particle-size-dependent signal intensity and conjugation efficiency. One solution to this problem would be to induce nucleation on nanoparticles that have successfully bound a target biomarker to permit in situ nanoparticle growth for signal amplification, but approaches that are evaluated to date require harsh conditions or lack nucleation specificity, prohibiting their effective use with most biological specimens. This study describes a one-step in situ strategy to induce monocrystalline copper shell growth on gold nanorod probes without decreasing signal by disrupting probe-target interactions or lipid bilayer integrity to enable EV biomarker detections. This approach increases the detected nanoparticle signal about two orders of magnitude after a 10 min copper nanoshell growth reaction. This has significant implications for improved disease detection, as indicated by the ability of a novel immunoassay using this approach to detect low abundance EVs carrying a pathogen-derived biomarker, after their direct capture from serum, to facilitate the diagnosis of tuberculosis cases in a diagnostically challenging pediatric cohort.
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Affiliation(s)
- Shu Wang
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Wenshu Zheng
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Ruixuan Wang
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Lili Zhang
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Li Yang
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Tao Wang
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Julian G Saliba
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biomedical Engineering, Tulane University School of Science & Engineering, 6823 St. Charles Ave, New Orleans, LA, 70118, USA
| | - Sutapa Chandra
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Chen-Zhong Li
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Christopher J Lyon
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Tony Y Hu
- Center for Cellular and Molecular Diagnostics, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
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22
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Nguyen QN, Wang C, Shang Y, Janssen A, Xia Y. Colloidal Synthesis of Metal Nanocrystals: From Asymmetrical Growth to Symmetry Breaking. Chem Rev 2022; 123:3693-3760. [PMID: 36547384 DOI: 10.1021/acs.chemrev.2c00468] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nanocrystals offer a unique platform for tailoring the physicochemical properties of solid materials to enhance their performances in various applications. While most work on controlling their shapes revolves around symmetrical growth, the introduction of asymmetrical growth and thus symmetry breaking has also emerged as a powerful route to enrich metal nanocrystals with new shapes and complex morphologies as well as unprecedented properties and functionalities. The success of this route critically relies on our ability to lift the confinement on symmetry by the underlying unit cell of the crystal structure and/or the initial seed in a systematic manner. This Review aims to provide an account of recent progress in understanding and controlling asymmetrical growth and symmetry breaking in a colloidal synthesis of noble-metal nanocrystals. With a touch on both the nucleation and growth steps, we discuss a number of methods capable of generating seeds with diverse symmetry while achieving asymmetrical growth for mono-, bi-, and multimetallic systems. We then showcase a variety of symmetry-broken nanocrystals that have been reported, together with insights into their growth mechanisms. We also highlight their properties and applications and conclude with perspectives on future directions in developing this class of nanomaterials. It is hoped that the concepts and existing challenges outlined in this Review will drive further research into understanding and controlling the symmetry breaking process.
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Affiliation(s)
- Quynh N. Nguyen
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Chenxiao Wang
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Yuxin Shang
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Annemieke Janssen
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Younan Xia
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia30332, United States
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23
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Maciulis V, Ramanaviciene A, Plikusiene I. Recent Advances in Synthesis and Application of Metal Oxide Nanostructures in Chemical Sensors and Biosensors. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12244413. [PMID: 36558266 PMCID: PMC9783830 DOI: 10.3390/nano12244413] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 05/31/2023]
Abstract
Nanostructured materials formed from metal oxides offer a number of advantages, such as large surface area, improved mechanical and other physical properties, as well as adjustable electronic properties that are important in the development and application of chemical sensors and biosensor design. Nanostructures are classified using the dimensions of the nanostructure itself and their components. In this review, various types of nanostructures classified as 0D, 1D, 2D, and 3D that were successfully applied in chemical sensors and biosensors, and formed from metal oxides using different synthesis methods, are discussed. In particular, significant attention is paid to detailed analysis and future prospects of the synthesis methods of metal oxide nanostructures and their integration in chemical sensors and biosensor design.
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Affiliation(s)
- Vincentas Maciulis
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
- Nanotechnas–Center of Nanotechnology and Materials Science, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
| | - Almira Ramanaviciene
- Nanotechnas–Center of Nanotechnology and Materials Science, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
| | - Ieva Plikusiene
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
- Nanotechnas–Center of Nanotechnology and Materials Science, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
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24
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Chernova E, Botvin V, Galstenkova M, Mukhortova Y, Wagner D, Gerasimov E, Surmeneva M, Kholkin A, Surmenev R. A Comprehensive Study of Synthesis and Analysis of Anisotropic Iron Oxide and Oxyhydroxide Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4321. [PMID: 36500941 PMCID: PMC9739039 DOI: 10.3390/nano12234321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
One-dimensional anisotropic nanoparticles are of great research interest across a wide range of biomedical applications due to their specific physicochemical and magnetic properties in comparison with isotropic magnetic nanoparticles. In this work, the formation of iron oxides and oxyhydroxide anisotropic nanoparticles (ANPs) obtained by the co-precipitation method in the presence of urea was studied. Reaction pathways of iron oxide and oxyhydroxide ANPs formation are described based on of X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and pulse magnetometry studies. It is shown that a nonmonotonic change in the Fe3O4 content occurs during synthesis. The maximum content of the Fe3O4 phase of 47.4% was obtained at 12 h of the synthesis. At the same time, the reaction products contain ANPs of α-FeOOH and submicron isotropic particles of Fe3O4, the latter formation can occur due to the oxidation of Fe2+ ions by air-oxygen and Ostwald ripening processes. A subsequent increase in the synthesis time leads to the predominant formation of an α-FeOOH phase due to the oxidation of Fe3O4. As a result of the work, a methodological scheme for the analysis of iron oxide and oxyhydroxide ANPs was developed.
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Affiliation(s)
- Elizaveta Chernova
- International Research & Development Center Piezo and Magnetoelectric Materials, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Vladimir Botvin
- International Research & Development Center Piezo and Magnetoelectric Materials, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Maria Galstenkova
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Yulia Mukhortova
- International Research & Development Center Piezo and Magnetoelectric Materials, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Dmitry Wagner
- Scientific Laboratory for Terahertz Research, National Research Tomsk State University, 634050 Tomsk, Russia
| | - Evgeny Gerasimov
- Department of Catalyst Research, Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia
| | - Maria Surmeneva
- International Research & Development Center Piezo and Magnetoelectric Materials, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Andrei Kholkin
- International Research & Development Center Piezo and Magnetoelectric Materials, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
- School of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russia
| | - Roman Surmenev
- International Research & Development Center Piezo and Magnetoelectric Materials, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
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25
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Kong J, Wang Y, Wu Y, Zhang L, Gong M, Lin X, Wang D. Toward High-Energy-Density Aqueous Lithium-Ion Batteries Using Silver Nanowires as Current Collectors. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238207. [PMID: 36500301 PMCID: PMC9736977 DOI: 10.3390/molecules27238207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
The lack of suitable lightweight current collectors is one of the primary obstacles preventing the energy density of aqueous lithium-ion batteries (ALIBs) from becoming competitive. Using silver nanowire (AgNW) films as current collectors and a molecular crowding electrolyte, we herein report the fabrication of ALIBs with relatively good energy densities. In the 2 m LiTFSI-94% PEG-6% H2O solution, the AgNW films with a sheet resistance of less than 1.0 ohm/square exhibited an electrochemical stability window as broad as 3.8 V. The LiMn2O4//Li4Ti5O12 ALIBs using AgNW films as the current collectors demonstrated an initial energy density of 70 Wh/kg weighed by the total mass of the cathode and anode, which retained 89.1% after 50 cycles.
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26
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Xu H, Guan D. Exceptional Anisotropic Noncovalent Interactions in Ultrathin Nanorods: The Terminal σ-Hole. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51190-51199. [PMID: 36342830 DOI: 10.1021/acsami.2c14041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Nanomaterial is the Holy Grail of material science, which has been widely applied in the fields of energy, environment, chemistry, and biomedicine. Its catalytic merits were usually ascribed to the advantages of size effect, strain effect, and covalent effect. Noncovalent interactions are critical in the catalysis processes but often overlooked. Herein, different from the traditional understandings, we discover for the first time and give systematic insights into a unique noncovalent terminal σ-hole phenomenon in the 3d-metal-based nanorods, which should be one of the key origins of nanomaterial activity. As a proof-of-concept, pure metal and alloyed core-shell nanoclusters/nanorods composed of the two most important 3d metals (Co and Ni) growing from 0.5 to 2.5 nm are investigated. Unlike nanoclusters, the σ-hole only appears at the terminal sites of nanorods and the magnitude of the terminal σ-hole generally enhances with the growing processes. Further investigations show that this terminal σ-hole is closely related to the important physicochemical properties of nanorods. For example, the work function along the axis of the terminal σ-hole is smaller than other directions, contributing to the facile electronic transport along the axis of the terminal σ-hole. Most importantly, we find that the d-orbital center of the atoms around the terminal σ-hole shifts closer to the Fermi level as compared with other atoms, which can endow the terminal sites in nanorods with the higher chemical adsorption capability. We believe that this work will provide critical guidance for the rational design of nanomaterials in many potential applications.
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Affiliation(s)
- Hengyue Xu
- Tsinghua Shenzhen International Graduate School, Institute of Biopharmaceutical and Health Engineering, Tsinghua University, Shenzhen518055, China
| | - Daqin Guan
- Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon999077, Hong Kong, China
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27
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Zeng P, Hang L, Zhang G, Wang Y, Chen Z, Yu J, Zhang T, Cai W, Li Y. Atom Absorption Energy Directed Symmetry-Breaking Synthesis of Au-Ag Hierarchical Nanostructures and Their Efficient Photothermal Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204748. [PMID: 36180406 DOI: 10.1002/smll.202204748] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/31/2022] [Indexed: 06/16/2023]
Abstract
Asymmetric plasmonic hierarchical nanostructures (HNs) are of great significance in optics, catalysis, and sensors, but the complex growth kinetics and lack of fine structure design limit their practical applications. Herein, a new atom absorption energy strategy is developed to achieve a series of Au-Ag HNs with the continuously tuned contact area in Janus and Ag island number/size on Au seeds. Different from the traditional passive growth mode, this strategy endows seed with a hand to capture the hetero atoms in a proactive manner, which is beyond the size, shape, and assembles of Au seed. Density functional theory reveals ththe adsorption of PDDA on Au surface leads to lower formation energy of Au-Ag bonds (-3.96 eV) than FSDNA modified Au surface (-2.44 eV). The competitive adsorption of two ligands on Au seed is the decisive factor for the formation of diverse Au-Ag HNs. In particular, the Au-Ag2 HNs exhibit outstanding photothermal conversion capability in the near-infrared window, and in vivo experiments verify them as superior photothermal therapy agents. This work highlights the importance of the atom absorption energy strategy in unlocking the diversity of HNs and may push the synthesis and application of superstructures to a higher level.
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Affiliation(s)
- Pan Zeng
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Lifeng Hang
- The Department of Medical Imaging, Guangdong Second Provincial General Hospital, Guangzhou, 518037, P. R. China
| | - Guofeng Zhang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Yifan Wang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Zhiming Chen
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jie Yu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Tao Zhang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Weiping Cai
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Yue Li
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
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28
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Zhou H, Lin H, Wang Q, Hao T, Hu Y, Wang S, Guo Z. Tunneling or Hopping? A Direct Electrochemical Observation of Electron Transfer in DNA. Anal Chem 2022; 94:15324-15331. [DOI: 10.1021/acs.analchem.2c02794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huiqian Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, PR China
| | - Han Lin
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, PR China
| | - Qi Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, PR China
| | - Tingting Hao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, PR China
| | - Yufang Hu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, PR China
| | - Sui Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, PR China
| | - Zhiyong Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, PR China
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29
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Chen Y, Liang T, Chen L, Chen Y, Yang BR, Luo Y, Liu GS. Self-assembly, alignment, and patterning of metal nanowires. NANOSCALE HORIZONS 2022; 7:1299-1339. [PMID: 36193823 DOI: 10.1039/d2nh00313a] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Armed with the merits of one-dimensional nanostructures (flexibility, high aspect ratio, and anisotropy) and metals (high conductivity, plasmonic properties, and catalytic activity), metal nanowires (MNWs) have stood out as a new class of nanomaterials in the last two decades. They are envisaged to expedite significantly and even revolutionize a broad spectrum of applications related to display, sensing, energy, plasmonics, photonics, and catalysis. Compared with disordered MNWs, well-organized MNWs would not only enhance the intrinsic physical and chemical properties, but also create new functions and sophisticated architectures of optoelectronic devices. This paper presents a comprehensive review of assembly strategies of MNWs, including self-assembly for specific structures, alignment for anisotropic constructions, and patterning for precise configurations. The technical processes, underlying mechanisms, performance indicators, and representative applications of these strategies are described and discussed to inspire further innovation in assembly techniques and guide the fabrication of optoelectrical devices. Finally, a perspective on the critical challenges and future opportunities of MNW assembly is provided.
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Affiliation(s)
- Ying Chen
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.
| | - Tianwei Liang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.
| | - Lei Chen
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.
- Key Laboratory of Visible Light Communications of Guangzhou, Jinan University, Guangzhou 510632, China
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Guangzhou 510632, China
| | - Yaofei Chen
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.
- Key Laboratory of Visible Light Communications of Guangzhou, Jinan University, Guangzhou 510632, China
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Guangzhou 510632, China
| | - Bo-Ru Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510006, China
| | - Yunhan Luo
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.
- Key Laboratory of Visible Light Communications of Guangzhou, Jinan University, Guangzhou 510632, China
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Guangzhou 510632, China
| | - Gui-Shi Liu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.
- Key Laboratory of Visible Light Communications of Guangzhou, Jinan University, Guangzhou 510632, China
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Guangzhou 510632, China
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30
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Wang Y, Wang J, Kong X, Gong M, Zhang L, Lin X, Wang D. Origin of Capillary-Force-Induced Welding in Ag Nanowires and Ag Nanowire/Carbon Nanotube Conductive Networks. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:12682-12688. [PMID: 36191128 DOI: 10.1021/acs.langmuir.2c02176] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Capillary-force-induced welding can effectively reduce the contact resistance between two silver nanowires (AgNWs) by merging the NW-NW junctions. Herein, we report a model for quantifying the capillary force between two nano-objects. The model can be used to calculate the capillary force generated between AgNWs and carbon nanotubes (CNTs) during water evaporation. The results indicate that the radius of one-dimensional nano-objects is crucial for capillary-force-induced welding. AgNWs with larger radii can generate a greater capillary force (FAgNW-AgNW) at NW-NW junctions. In addition, for AgNW/CNT hybrid films, the use of CNTs with a radius close to that of AgNWs can result in a larger capillary force (FAgNW-CNT) at NW-CNT junctions. The reliability of the model is verified by measuring the change in sheet resistance before and after capillary-force-induced welding of a series of AgNW and AgNW/CNT conductive films with varying radii.
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Affiliation(s)
- Yangyang Wang
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing100083, China
| | - Jianping Wang
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing100083, China
| | - Xiangyi Kong
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing100083, China
| | - Min Gong
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing100083, China
- Beijing Key Laboratory for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing100083, China
| | - Liang Zhang
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing100083, China
- Beijing Key Laboratory for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing100083, China
| | - Xiang Lin
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing100083, China
- Beijing Key Laboratory for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing100083, China
| | - Dongrui Wang
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing100083, China
- Beijing Key Laboratory for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing100083, China
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31
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Layered Pd oxide on PdSn nanowires for boosting direct H 2O 2 synthesis. Nat Commun 2022; 13:6072. [PMID: 36241626 PMCID: PMC9568611 DOI: 10.1038/s41467-022-33757-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 09/30/2022] [Indexed: 12/02/2022] Open
Abstract
Hydrogen peroxide (H2O2) has the wide range of applications in industry and living life. However, the development of the efficient heterogeneous catalyst in the direct H2O2 synthesis (DHS) from H2 and O2 remains a formidable challenge because of the low H2O2 producibility. Herein, we develop a two-step approach to prepare PdSn nanowire catalysts, which comprises Pd oxide layered on PdSn nanowires (PdL/PdSn-NW). The PdL/PdSn-NW displays superior reactivity in the DHS at zero Celcius, presenting the H2O2 producibility of 528 mol kgcat−1·h−1 and H2O2 selectivity of >95%. A layer of Pd oxide on the PdSn nanowire generates bi-coordinated Pd, leading to the different adsorption behaviors of O2, H2 and H2O2 on the PdL/PdSn-NW. Furthermore, the weak adsorption of H2O2 on the PdL/PdSn-NW contributes to the low activation energy and high H2O2 producibility. This surface engineering approach, depositing metal layer on metal nanowires, provides a new insight in the rational designing of efficient catalyst for DHS. The development of the efficient catalyst in the direct H2O2 synthesis (DHS) from H2 and O2 remains a formidable challenge. Here, the authors develop a two-step approach to prepare a layer of Pd oxide on PdSn nanowires which displays superior reactivity in the DHS at zero Celcius.
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32
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Chen PZ, Skirzynska A, Yuan T, Voznyy O, Gu FX. Asymmetric Interfacet Adatom Migration as a Mode of Anisotropic Nanocrystal Growth. J Am Chem Soc 2022; 144:19417-19429. [PMID: 36226909 DOI: 10.1021/jacs.2c07423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Crystals are known to grow nonclassically or via four classical modes (the layer-by-layer, dislocation-driven, dendritic, and normal modes, which generally involve minimal interfacet surface diffusion). The field of nanoscience considers this framework to interpret how nanocrystals grow; yet, the growth of many anisotropic nanocrystals remains enigmatic, suggesting that the framework may be incomplete. Here, we study the solution-phase growth of pentatwinned Au nanorods without Br, Ag, or surfactants. Lower supersaturation conditions favored anisotropic growth, which appeared at variance with the known modes. Temporal electron microscopy revealed kinetically limited adatom funneling, as adatoms diffused asymmetrically along the vicinal facets (situated inbetween the {100} side-facets and {111} end-facets) of our nanorods. These vicinal facets were perpetuated throughout the synthesis and, especially at lower supersaturation, facilitated {100}-to-vicinal-to-{111} adatom diffusion. We derived a growth model from classical theory in view of our findings, which showed that our experimental growth kinetics were consistent with nanorods growing via two modes simultaneously: radial growth occurred via the layer-by-layer mode on {100} side-facets, whereas the asymmetric interfacet diffusion of adatoms to {111} end-facets mediated longitudinal growth. Thus, shape anisotropy was not driven by modulating the relative rates of monomer deposition on different facets, as conventionally thought, but rather by modulating the relative rates of monomer integration via interfacet diffusion. This work shows how controlling supersaturation, a thermodynamic parameter, can uncover distinct kinetic phenomena on nanocrystals, such as asymmetric interfacet surface diffusion and a fundamental growth mode for which monomer deposition and integration occur on different facets.
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Affiliation(s)
- Paul Z Chen
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, ONM5S3E5, Canada
| | - Arianna Skirzynska
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, ONM5S3E5, Canada
| | - Tiange Yuan
- Department of Physical & Environmental Sciences, Department of Chemistry, University of Toronto, Scarborough, ONM1C1A4, Canada
| | - Oleksandr Voznyy
- Department of Physical & Environmental Sciences, Department of Chemistry, University of Toronto, Scarborough, ONM1C1A4, Canada
| | - Frank X Gu
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, ONM5S3E5, Canada.,Institute of Biomedical Engineering, University of Toronto, Toronto, ONM5S3G9, Canada
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33
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Wang P, Krasavin AV, Liu L, Jiang Y, Li Z, Guo X, Tong L, Zayats AV. Molecular Plasmonics with Metamaterials. Chem Rev 2022; 122:15031-15081. [PMID: 36194441 PMCID: PMC9562285 DOI: 10.1021/acs.chemrev.2c00333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Molecular plasmonics, the area which deals with the interactions between surface plasmons and molecules, has received enormous interest in fundamental research and found numerous technological applications. Plasmonic metamaterials, which offer rich opportunities to control the light intensity, field polarization, and local density of electromagnetic states on subwavelength scales, provide a versatile platform to enhance and tune light-molecule interactions. A variety of applications, including spontaneous emission enhancement, optical modulation, optical sensing, and photoactuated nanochemistry, have been reported by exploiting molecular interactions with plasmonic metamaterials. In this paper, we provide a comprehensive overview of the developments of molecular plasmonics with metamaterials. After a brief introduction to the optical properties of plasmonic metamaterials and relevant fabrication approaches, we discuss light-molecule interactions in plasmonic metamaterials in both weak and strong coupling regimes. We then highlight the exploitation of molecules in metamaterials for applications ranging from emission control and optical modulation to optical sensing. The role of hot carriers generated in metamaterials for nanochemistry is also discussed. Perspectives on the future development of molecular plasmonics with metamaterials conclude the review. The use of molecules in combination with designer metamaterials provides a rich playground both to actively control metamaterials using molecular interactions and, in turn, to use metamaterials to control molecular processes.
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Affiliation(s)
- Pan Wang
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou310027, China.,Department of Physics and London Centre for Nanotechnology, King's College London, Strand, LondonWC2R 2LS, U.K.,Jiaxing Key Laboratory of Photonic Sensing & Intelligent Imaging, Jiaxing314000, China.,Intelligent Optics & Photonics Research Center, Jiaxing Research Institute, Zhejiang University, Jiaxing314000, China
| | - Alexey V Krasavin
- Department of Physics and London Centre for Nanotechnology, King's College London, Strand, LondonWC2R 2LS, U.K
| | - Lufang Liu
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Yunlu Jiang
- Department of Physics and London Centre for Nanotechnology, King's College London, Strand, LondonWC2R 2LS, U.K
| | - Zhiyong Li
- Jiaxing Key Laboratory of Photonic Sensing & Intelligent Imaging, Jiaxing314000, China.,Intelligent Optics & Photonics Research Center, Jiaxing Research Institute, Zhejiang University, Jiaxing314000, China
| | - Xin Guo
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou310027, China.,Jiaxing Key Laboratory of Photonic Sensing & Intelligent Imaging, Jiaxing314000, China.,Intelligent Optics & Photonics Research Center, Jiaxing Research Institute, Zhejiang University, Jiaxing314000, China
| | - Limin Tong
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Anatoly V Zayats
- Department of Physics and London Centre for Nanotechnology, King's College London, Strand, LondonWC2R 2LS, U.K
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34
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Wang W, Shi X, He T, Zhang Z, Yang X, Guo YJ, Chong B, Zhang WM, Jin M. Tailoring Amorphous PdCu Nanostructures for Efficient C-C Cleavage in Ethanol Electrooxidation. NANO LETTERS 2022; 22:7028-7033. [PMID: 35856652 DOI: 10.1021/acs.nanolett.2c01870] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The large-scale application of direct ethanol fuel cells has long been obstructed by the sluggish ethanol oxidation reaction at the anode. Current wisdom for designing and fabricating EOR electrocatalysts has been focused on crystalline materials, which result in only limited improvement in catalytic efficiency. Here, we report the amorphous PdCu (a-PdCu) nanomaterials as superior EOR electrocatalysts. The amorphization of PdCu catalysts can significantly facilitate the C-C bond cleavage, which thereby affords a C1 path faradic efficiency as high as 69.6%. Further tailoring the size and shape of a-PdCu nanocatalysts through the delicate kinetic control can result in a maximized mass activity up to 15.25 A/mgPd, outperforming most reported catalysts. Notably, accelerated durability tests indicate that both the isotropic structure and one-dimensional shape can dramatically enhance the catalytic durability of the catalysts. This work provides valuable guidance for the rational design and fabrication of amorphous noble metal-based electrocatalysts for fuel cells.
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Affiliation(s)
- Weicong Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xiatong Shi
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Tianou He
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Zhaorui Zhang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xiaolong Yang
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 400044, China
| | - Yan-Jun Guo
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Ben Chong
- XJTU-Oxford Joint International Research Laboratory of Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Wen-Min Zhang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Mingshang Jin
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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35
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Cheng N, Sun H, Beker AF, van Omme JT, Svensson E, Arandiyan H, Lee HR, Ge B, Basak S, Eichel RA, Pivak Y, Xu Q, Hugo Pérez Garza H, Shao Z. Nanoscale visualization of metallic electrodeposition in a well-controlled chemical environment. NANOTECHNOLOGY 2022; 33:445702. [PMID: 35878519 DOI: 10.1088/1361-6528/ac83c7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
Liquid phase transmission electron microscopy (TEM) provides a useful means to study a wide range of dynamics in solution with near-atomic spatial resolution and sub-microsecond temporal resolution. However, it is still a challenge to control the chemical environment (such as the flow of liquid, flow rate, and the liquid composition) in a liquid cell, and evaluate its effect on the various dynamic phenomena. In this work, we have systematically demonstrated the flow performance of anin situliquid TEM system, which is based on 'on-chip flow' driven by external pressure pumps. We studied the effects of different chemical environments in the liquid cell as well as the electrochemical potential on the deposition and dissolution behavior of Cu crystals. The results show that uniform Cu deposition can be obtained at a higher liquid flow rate (1.38μl min-1), while at a lower liquid flow rate (0.1μl min-1), the growth of Cu dendrites was observed. Dendrite formation could be further promoted byin situaddition of foreign ions, such as phosphates. The generality of this technique was confirmed by studying Zn electrodeposition. Our direct observations not only provide new insights into understanding the nucleation and growth but also give guidelines for the design and synthesis of desired nanostructures for specific applications. Finally, the capability of controlling the chemical environment adds another dimension to the existing liquid phase TEM technique, extending the possibilities to study a wide range of dynamic phenomena in liquid media.
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Affiliation(s)
- Ningyan Cheng
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, People's Republic of China
| | - Hongyu Sun
- DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands
| | - Anne France Beker
- DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands
| | - J Tijn van Omme
- DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands
| | - Emil Svensson
- DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands
| | - Hamidreza Arandiyan
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, The University of Sydney, 2006, Sydney, Australia
| | - Hye Ryoung Lee
- Department of Electrical Engineering, Stanford University, Stanford, CA 94305, United States of America
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States of America
| | - Binghui Ge
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, People's Republic of China
| | - Shibabrata Basak
- Institute of Energy and Climate Research, Fundamental Electrochemistry (IEK-9), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - Rüdiger A Eichel
- Institute of Energy and Climate Research, Fundamental Electrochemistry (IEK-9), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
- Institute of Physical Chemistry, RWTH Aachen University, D-52074 Aachen, Germany
| | - Yevheniy Pivak
- DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands
| | - Qiang Xu
- DENSsolutions B.V., Informaticalaan 12, 2628 ZD Delft, The Netherlands
| | | | - Zongping Shao
- WA School of Mines: Minerals, Energy, and Chemical Engineering, Curtin University, Perth, WA 6845, Australia
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36
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Xing Y, Wang W, Hu D, Xu W. Percolation threshold and excluded volume of overlapping spherotetrahedral particle systems: Shape evolution from tetrahedron to sphere. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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37
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Petrova V, Corrao AA, Wang S, Xiao Y, Chapman KW, Fullerton EE, Khalifah PG, Liu P. Synthesis of flexible Co nanowires from bulk precursors. RSC Adv 2022; 12:21153-21159. [PMID: 35975062 PMCID: PMC9341434 DOI: 10.1039/d2ra03790d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/06/2022] [Indexed: 11/21/2022] Open
Abstract
This work reports a method of producing flexible cobalt nanowires (NWs) directly from the chemical conversion of bulk precursors at room temperature. Chemical reduction of Li6CoCl8 produces a nanocomposite of Co and LiCl, of which the salt is subsequently removed. The dilute concentration of Co in the precursor combined with the anisotropic crystal structure of the hcp phase leads to 1D growth in the absence of any templates or additives. The Co NWs are shown to have high saturation magnetization (130.6 emu g−1). Our understanding of the NW formation mechanism points to new directions of scalable nanostructure generation. This work reports a method of producing flexible cobalt nanowires (NWs) directly from the chemical conversion of bulk precursors at room temperature.![]()
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Affiliation(s)
- Victoria Petrova
- Department of Nanoengineering, University of California-San Diego La Jolla California 92093 USA
| | - Adam A Corrao
- Department of Chemistry, Stony Brook University Stony Brook NY 11794 USA
| | - Shen Wang
- Department of Nanoengineering, University of California-San Diego La Jolla California 92093 USA
| | - Yuxuan Xiao
- Center for Memory and Recording Research, University of California San Diego La Jolla CA 92093-0401 USA
| | - Karena W Chapman
- Department of Chemistry, Stony Brook University Stony Brook NY 11794 USA
| | - Eric E Fullerton
- Center for Memory and Recording Research, University of California San Diego La Jolla CA 92093-0401 USA
| | - Peter G Khalifah
- Department of Chemistry, Stony Brook University Stony Brook NY 11794 USA.,Chemistry Division, Brookhaven National Laboratory Upton New York 11973 USA
| | - Ping Liu
- Department of Nanoengineering, University of California-San Diego La Jolla California 92093 USA
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38
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Pankhurst JR, Castilla-Amorós L, Stoian DC, Vavra J, Mantella V, Albertini PP, Buonsanti R. Copper Phosphonate Lamella Intermediates Control the Shape of Colloidal Copper Nanocrystals. J Am Chem Soc 2022; 144:12261-12271. [PMID: 35770916 PMCID: PMC9284559 DOI: 10.1021/jacs.2c03489] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Understanding the
structure and behavior of intermediates in chemical
reactions is the key to developing greater control over the reaction
outcome. This principle is particularly important in the synthesis
of metal nanocrystals (NCs), where the reduction, nucleation, and
growth of the reaction intermediates will determine the final size
and shape of the product. The shape of metal NCs plays a major role
in determining their catalytic, photochemical, and electronic properties
and, thus, the potential applications of the material. In this work,
we demonstrate that layered coordination polymers, called lamellae,
are reaction intermediates in Cu NC synthesis. Importantly, we discover
that the lamella structure can be fine-tuned using organic ligands
of different lengths and that these structural changes control the
shape of the final NC. Specifically, we show that short-chain phosphonate
ligands generate lamellae that are stable enough at the reaction temperature
to facilitate the growth of Cu nuclei into anisotropic Cu NCs, being
primarily triangular plates. In contrast, lamellae formed from long-chain
ligands lose their structure and form spherical Cu NCs. The synthetic
approach presented here provides a versatile tool for the future development
of metal NCs, including other anisotropic structures.
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Affiliation(s)
- James R Pankhurst
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Laia Castilla-Amorós
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Dragos C Stoian
- The Swiss-Norwegian Beamlines, European Synchrotron Radiation Facility (ESRF), Grenoble 38000, France
| | - Jan Vavra
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Valeria Mantella
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Petru P Albertini
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Raffaella Buonsanti
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
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39
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Kumar A, Dutta S, Kim S, Kwon T, Patil SS, Kumari N, Jeevanandham S, Lee IS. Solid-State Reaction Synthesis of Nanoscale Materials: Strategies and Applications. Chem Rev 2022; 122:12748-12863. [PMID: 35715344 DOI: 10.1021/acs.chemrev.1c00637] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanomaterials (NMs) with unique structures and compositions can give rise to exotic physicochemical properties and applications. Despite the advancement in solution-based methods, scalable access to a wide range of crystal phases and intricate compositions is still challenging. Solid-state reaction (SSR) syntheses have high potential owing to their flexibility toward multielemental phases under feasibly high temperatures and solvent-free conditions as well as their scalability and simplicity. Controlling the nanoscale features through SSRs demands a strategic nanospace-confinement approach due to the risk of heat-induced reshaping and sintering. Here, we describe advanced SSR strategies for NM synthesis, focusing on mechanistic insights, novel nanoscale phenomena, and underlying principles using a series of examples under different categories. After introducing the history of classical SSRs, key theories, and definitions central to the topic, we categorize various modern SSR strategies based on the surrounding solid-state media used for nanostructure growth, conversion, and migration under nanospace or dimensional confinement. This comprehensive review will advance the quest for new materials design, synthesis, and applications.
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Affiliation(s)
- Amit Kumar
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Soumen Dutta
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Seonock Kim
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Taewan Kwon
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Santosh S Patil
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Nitee Kumari
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Sampathkumar Jeevanandham
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - In Su Lee
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.,Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul 03722, Korea
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40
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Wu J, Xi J, Chen H, Liu Y, Zhang L, Li P, Wu W. SERS-active nanocellulose substrate via in-situ photochemical synthesis. Int J Biol Macromol 2022; 215:368-376. [PMID: 35691436 DOI: 10.1016/j.ijbiomac.2022.06.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 05/25/2022] [Accepted: 06/07/2022] [Indexed: 11/05/2022]
Abstract
Surface-enhanced Raman scattering spectroscopy (SERS) is a highly-sensitive technology to detect trace target analytes. Herein, a series of flexible SERS substrate for the detection of malachite green (MG) bactericide were developed via in situ photochemical synthesis of silver nanoparticles (AgNPs) based on two dimentional (2D) nanocellulose film without additional reducing agent. For the first time, silver nanocubes (AgNCs) with sharp edges and corners, which are conductive to the formation of hot spots, were successfully prepared and uniformly loaded on the nanocellulose film by controlling the reaction conditions. The obtained composite SERS substrate showed high sensitivity to Rhodamine 6G (R6G) and MG with limit of detection (LOD) of 4.7 × 10-12 and 1.2 × 10-8 g/L, respectively. In addition, the relative standard deviation (RSD) was calculated lower than 15 %, demonstrating the good detection reproducibility. The nanocellulose-based 2D SERS substrate shows the potential as a detection platform in the rapid and sensitive identification of various toxic and harmful pollutants.
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Affiliation(s)
- Jingjing Wu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Research and Evaluation of Bamboo Fiber Printing and Packaging Materials China National Light Industry, Sichuan Province Engineering Technology Research Center of Bamboo Pulping and Papermaking, Sichuan Technology & Business College, Sichuan 611830, China
| | - Jianfeng Xi
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Haibo Chen
- School of Electronic and Information Engineering, Soochow University, Suzhou 215000, Jiangsu, China
| | - Yishan Liu
- Key Laboratory of Research and Evaluation of Bamboo Fiber Printing and Packaging Materials China National Light Industry, Sichuan Province Engineering Technology Research Center of Bamboo Pulping and Papermaking, Sichuan Technology & Business College, Sichuan 611830, China
| | - Lei Zhang
- Key Laboratory for Organic Electronics and Information, National Jiangsu Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Peng Li
- School of Electronic and Information Engineering, Soochow University, Suzhou 215000, Jiangsu, China
| | - Weibing Wu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
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41
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Wu D, Han D, Zhou W, Streiff S, Khodakov AY, Ordomsky VV. Surface modification of metallic catalysts for the design of selective processes. CATALYSIS REVIEWS 2022. [DOI: 10.1080/01614940.2022.2079809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Dan Wu
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan, China
| | - Dandan Han
- College of Science, Henan Agricultural University, Zhengzhou, Henan, China
| | - Wenjuan Zhou
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
| | - Stephane Streiff
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
| | - Andrei Y. Khodakov
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
| | - Vitaly V. Ordomsky
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
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42
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Niu H, Xia C, Huang L, Zaman S, Maiyalagan T, Guo W, You B, Xia BY. Rational design and synthesis of one-dimensional platinum-based nanostructures for oxygen-reduction electrocatalysis. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63862-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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43
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Fan D, Guo K, Zhang Y, Hao Q, Hanx M, Xu D. Engineering High-entropy Alloy Nanowires Network for alcohol Electrooxidation. J Colloid Interface Sci 2022; 625:1012-1021. [DOI: 10.1016/j.jcis.2022.06.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/15/2022] [Accepted: 06/21/2022] [Indexed: 11/24/2022]
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44
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Ni B, González-Rubio G, Kirner F, Zhang S, Cölfen H. A Symmetry-Based Kinematic Theory for Nanocrystal Morphology Design. Angew Chem Int Ed Engl 2022; 61:e202200753. [PMID: 35238123 PMCID: PMC9310755 DOI: 10.1002/anie.202200753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Indexed: 11/06/2022]
Abstract
The growth of crystalline nanoparticles (NPs) generally involves three processes: nucleation, growth, and shape evolution. Among them, the shape evolution is less understood, despite the importance of morphology for NP properties. Here, we propose a symmetry-based kinematic theory (SBKT) based on classical growth theories to illustrate the process. Based on the crystal lattice, nucleus (or seed) symmetry, and the preferential growth directions under the experimental conditions, the SBKT can illustrate the growth trajectories. The theory accommodates the conventional criteria of the major existing theories for crystal growth and provides tools to better understand the symmetry-breaking process during the growth of anisotropic structures. Furthermore, complex dendritic growth is theoretically and experimentally demonstrated. Thus, it provides a framework to explain the shape evolution, and extends the morphogenesis prediction to cases, which cannot be treated by other theories.
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Affiliation(s)
- Bing Ni
- Physical Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | | | - Felizitas Kirner
- Physical Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Siyuan Zhang
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1, 40237, Düsseldorf, Germany
| | - Helmut Cölfen
- Physical Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
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45
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Green, sustainable, and room-temperature synthesis of silver nanowires using tannic acid – Kinetic and parametric study. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Sun J, Gao X, Wei W. Synthesis of silver leaves and their potential application for analysis and degradation of phenolic pollutants. IET Nanobiotechnol 2022; 16:78-84. [PMID: 35142048 PMCID: PMC9007148 DOI: 10.1049/nbt2.12077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/14/2022] [Accepted: 01/25/2022] [Indexed: 11/20/2022] Open
Abstract
A one-pot bottom-up synthesis method was used to synthesise multi-level leaf-like nano-silver (silver leaf) by simply mixing AgNO3 , L-ascorbic acid, Sodium sodium citrate, and polyvinylpyrrolidone (PVP) in the ethanol-water mixed solvents. Scanning electron microscopy (SEM) characterisations show that the silver leaves have tertiary structures and their sizes are controllable. In addition, silver leaves exhibit excellent Raman enhancement effect (SERS) and chemical catalytic activities for phenolic molecules. Interestingly, the SERS and catalytic activities increase as the size of the silver leaves decrease within a certain range, but when the size is too small, both of these performances weaken. The nanometre size and interstitial structure have a common amplification effect and influence on these activities. The present work not only showed a new method for the synthesis of silver leaves but also could be generalised to find other metallic leaves that could be used as promising heterogeneous catalysts for various reactions. The production of such small-sized silver leaves will facilitate the analysis of phenolic pollutants through Raman enhancement and treat these pollutants through catalytic degradation.
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Affiliation(s)
- Jianan Sun
- Department of Basic MedicineJinzhou Medical UniversityJinzhouChina
| | - Xianhui Gao
- Department of Basic MedicineJinzhou Medical UniversityJinzhouChina
| | - Wei Wei
- Department of Basic MedicineJinzhou Medical UniversityJinzhouChina
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47
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Stoichiometric Ratio Controlled Dimension Transition and Supramolecular Chirality Enhancement in a Two-Component Assembly System. Gels 2022; 8:gels8050269. [PMID: 35621567 PMCID: PMC9140661 DOI: 10.3390/gels8050269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 02/01/2023] Open
Abstract
To control the dimension of the supramolecular system was of great significance. We construct a two component self-assembly system, in which the gelator LHC18 and achiral azobenzene carboxylic acid could co-assembly and form gels. By modulating the stoichiometric ratio of the two components, not only the morphology could be transformed from 1D nanaotube to 0D nanospheres but also the supramolecualr chirality could be tuned. This work could provide some insights to the control of dimension and the supramolecular chirality in the two-component systems by simply modulating the stoichiometric ratio.
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48
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Liu Y, Naseri A, Li T, Ostovan A, Asadian E, Jia R, Shi L, Huang L, Moshfegh AZ. Shape-Controlled Photochemical Synthesis of Noble Metal Nanocrystals Based on Reduced Graphene Oxide. ACS APPLIED MATERIALS & INTERFACES 2022; 14:16527-16537. [PMID: 35373562 DOI: 10.1021/acsami.2c01209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The fabrication of supported noble metal nanocrystals (NCs) with well-controlled morphologies have been attracted considerable interests due to their merits in a wide variety of applications. Photodeposition is a facile and effective method to load metals over semiconductors in a simple slurry reactor under irradiation. By optimizing the photodeposition process, the size, chemical states, and the geometrical distribution of metal NCs have been successfully tuned. However, metal NCs with well-controlled shapes through the photodeposition process have not been reported until now. Here, we report our important advances in the controlled photodeposition process to load regular noble metal NCs. Reduced graphene oxide (rGO) is introduced as a reservoir for the fast transfer of photoelectrons to avoid the fast accumulation of photogenerated electrons on the noble metals which makes the growth process uncontrollable. Meanwhile, rGO also provides stable surface for the controlled nucleation and oriented growth. Noble metal NCs with regular morphologies are then evenly deposited on rGO. This strategy has been demonstrated feasible for different precious metals (Pd, Au, and Pt) and semiconductors (TiO2, ZnO, ZrO2, CeO2, and g-C3N4). In the prototype application of electrochemical hydrogen evolution reaction, regular Pd NCs with enclosed {111} facets showed much better performance compared with that of irregular Pd NCs.
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Affiliation(s)
- Yidan Liu
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Amene Naseri
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
- Nanotechnology Department, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education, and Extension Organization (AREEO), Karaj 3135933151, Iran
| | - Ting Li
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Azar Ostovan
- Department of Physical and Computational Chemistry, Shahid Beheshti University, Tehran 1983969411, Iran
| | - Elham Asadian
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran
| | - Rongrong Jia
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Liyi Shi
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Lei Huang
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Alireza Z Moshfegh
- Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran 14588-89694, Iran
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Basnayake Pussepitiyalage V, Hemmati S. Sustainable, Green, and Continuous Synthesis of Fivefold Palladium Nanorods Using l-Ascorbic Acid in a Segmented Millifluidic Flow Reactor. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4200-4212. [PMID: 35352559 DOI: 10.1021/acs.langmuir.1c03133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Pd nanorods (PdNRs) have recently come to attention due to their wide array of applications. The green synthesis of PdNR with a relatively high yield and high aspect ratio is challenging. A continuous millifluidic flow reactor (CMFR) has been explored to precisely control mass and heat transfer as well as mixing in the PdNR synthesis processes. CMFRs demonstrate a few drawbacks, such as the presence of parabolic velocity profile in the laminar flow of the reaction solution, causing uneven axial residence time distribution. The CMFRs are likely to show irreversible fouling, which may cause the product quality to deteriorate or result in the channel being clogged. These shortcomings can be avoided or minimized using a segmented millifluidic flow reactor (SMFR) that consists of the solution forming a train of individual segments in another inert medium. This study explores the use of a sustainable reducing agent (l-ascorbic acid) in the presence of potassium bromide (KBr) as the capping agent and poly(vinyl pyrrolidone) (PVP) as the stabilizing agent for PdNR synthesis in an SMFR employing compartmentalized flow of a reaction solution, in which liquid segments consisting of a reaction solution will be immersed in the steam generated by boiling of the solvent water. The effect of reaction parameters such as reagent concentration has been studied on the size and morphology of synthesized Pd nanostructures. A kinetic study has been conducted to calculate the rate of reduction that can be used as a quantitative measure for manipulation of the type and relative concentration of initially formed seeds. It has been shown that the initial reduction rate during the first 45 min of residence time of the millifluidic reactor is about 66% faster compared to the rest of the reaction. A filtration procedure has been utilized to separate Pd nanostructures other than nanorods synthesized in the SMFR.
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Affiliation(s)
| | - Shohreh Hemmati
- Department of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
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Pang M, Yang M, Yan J, Zhang B, Zang L, Fu A, Guo P. Assembly of Alloyed PdCu Nanosheets and Their Electrocatalytic Oxidation of Ethanol. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4287-4294. [PMID: 35363495 DOI: 10.1021/acs.langmuir.1c03466] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two-dimensional (2D) nanostructured catalysts have attracted great attention in many important fields, including energy applications and chemical industry. In this study, PdCu nanosheet assemblies (NSAs) have been synthesized and investigated as electrocatalysts for direct ethanol fuel cells in an alkaline medium. A great number of active sites on the nanosheets of PdCu NSAs for ethanol electro-oxidation are exposed, where the electron structures are optimized combined with the second element copper. Electrochemical measurements show that PdCu NSA1 exhibits excellent catalytic activity (2536 mA mg-1) and cyclic stability compared to PdCu NSA2 (1700 mA mg-1) and PdCu NSA3 (1436 mA mg-1), much higher than commercial Pd/C. Kinetics studies on the electrolysis of ethanol suggest that PdCu NSAs should be more favorable at higher catalytic temperatures, higher concentrations of ethanol, and low pH value environments. The unique composition and structures PdCu NSA1 would result in the lowest energy barrier in the rate-controlling step of the ethanol oxidation reaction (EOR), confirmed by density functional theory (DFT). The formation mechanism of PdCu NSAs and their excellent electrocatalytic activity toward EOR have been discussed and analyzed.
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Affiliation(s)
- Mingyuan Pang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Min Yang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Jie Yan
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Ben Zhang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Lei Zang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Aiping Fu
- College of Chemical Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Peizhi Guo
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
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